Device for operating street-railway switches



PATENTED JAN; 5, 1904.-

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H. T. YOUNG. V v v DEVICE FOR OPERATING STREET RAILWAY SWITCHES.

APPLIOATIOH FILED APR. 18. 1903.

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UNITED STATES Patented January 5, 1904.

PATENT OFFICE.

HARRY T. YOUNG, OF HOMESTEAD, PENNSYLVANIA.

SPECIFICATION forming part of Letters Patent No. 749,009, dated January5, 1904.

Application filed April 18, 1903.

To Ml whom it may concern.-

Be it known that I, HARRY T. YOUN G,a citizen of the United States,residing at Homestead, in the county of Allegheny and State ofPennsylvania,have invented a new and useful Improvement in Devices forOperating Street-Railway Switches, of which improvement the following isa specification.

This invention relates to an improved switch-throwing device forstreet-railways; and it consists in the certain details of constructionand combination of parts, as will be fully described hereinafter.

In the accompanying drawings Figure 1 is a plan view of a street-railwayswitch-bar and rail having my improved throwing device attached orconnected therewith, the same being constructed and arranged inaccordance with my invention. Fig. 2 is a side sectional elevation ofthe same, together with a section of the front platform of thestreet-car and a treadle mounted thereon. Fig. 3 is an enlarged detailedend elevation of the railway-rail, showing the manner in which therotatable disk is connected thereto. Fig. 4 is a face view of theabove-mentioned disk.

To put my invention into practice, and thereby provide a means ofturning the switch-bars of street-railways, I connect to the saidswitch-bar 1 by means of a pivot 4 a link 5, the said bar 1 beingpivoted at 2 in the ordinary manner. This link 5 is connected to abell-crank 6 and the said crank connected by a rod or bar 7 to a disk 9,the

same being journaled to the web of the rail 3 in the manner shown atFig. 3 of the drawings. This disk is properly supported on a shaft 12, abearing 11 riveted to the said web and secured or held in position by anut. Arranged about the inner periphery of the disk 9 are a series ofpins 10, placed at regular intervals,which are adapted to engage with arack 13, operated by a treadle 16, the said treadle being operated andunder the control. of the motorman. The connection between thebell-crank 6 and the disk 9 is made by a wrist-pin 8 and theabove-mentioned rod 7.

In operation the number of teeth in the rackbar 14. corresponds to thenumber of pins 10 of the disk 9, the said rack-bar having one-half thenumber of teeth of that arranged about the disk 9. The treadle 16 whenSerial No. 153,213. (No model.)

pushed down will lower the rack-bar 13 to engage with the pins 10 of thedisk and give the salnea rotatable motion equal to one-half turn of thesaid disk. This motion of the disk is transferred by the rod 7 to thebell- .crank 6 and to the switch-bar 1 to throw the same in eitherdirection.

It is obvious that various slight modifications and changes may be madein the details of construction without departing from the spirit of theinvention.

Having thus described my invention, what I claim, and desire to secureby Letters Patout, is'

1. A switch-operating mechanism comprising in combination with aswitch-rail, a rotary disk with projections thereon, pivotallink-and-lever connections between said rail and disk, and aspringpressed rack-bar adapted'to be carried by a car and to bedepressed to engage said projections, whereby the disk may be rotatedand the switch thrown, as set forth.

2. A switch-operating-mechanism comprising a pivoted rail, a disk, ashaft on which the same is journaled, a series of pins projecting fromone face of the disk, pivotal link-and-lever connections between saidlink and rail, a spring-pressed rack-bar adapted to be carried by a carand designed to be depressed to engage said pins to cause the disk torotate, as set forth.

3. In a device for the purpose described, the combination consisting ofthe switch-bar, the bell-crank and connecting-link, the disk journaledto the rail, a connecting-rod from the bell-crank to said disk, theprojecting pins or teeth, arranged in peripheral form about the face ofthe disk, and a rack carried by the vehicle, a means of elevating andlowering the same, whereby the said rack may be brought in contact withthe pins or teeth of the disk, to give the same a partial rotation,thereby moving the switch-bar, substantially as and for the purposedescribed.

In testimony whereof I have hereunto signed my name in the presence oftwo sub- In presence of- H. J. Lewis, M. W. KURNIKER.

